基于向量拟合法的永磁同步电机EMI高频模型

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摘要提出了一种三角型联结的永磁同步电机的高频模型和建模方法。将电机的阻抗表示成网络函数形式,利用在电机出线端口测取的阻抗特性数据,对该网络函数用向量拟合法进行数据拟合;根据网络函数与电路参数的对应关系,用拟合结果求出等效电路的RLC参数;在Saber仿真软件中搭建电机高频电路模型并进行仿真。仿真结果显示该高频电路模型在100kHz~100MHz频段内有很高的精度。在电机驱动系统仿真平台上计算了电机线电流和对地电流,仿真结果与实测值高度吻合,表明本文提出的电机高频模型可用于电机驱动系统的共模和差模传导电磁干扰分析。

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	汪泉弟
	张飞
	彭河蒙
	刘青松
	李旭

关键词 ：永磁同步电机, EMI建模, 函数拟合, 频域分析

Abstract：In this paper, a model and modeling methods for the permanent magnet synchronous motor of delta connection are presented. The motor impedance is expressed in the form of network function. The vector-fitting method is used in the motor-port network function according to the parameters obtained from the motor-port impedance test; and the parameters of the circuit model are obtained according to the network function equivalent circuit method. The motor overall model is constructed and simulated in software Saber. The simulation results show that the high-frequency circuit model has a high accuracy within the frequency band 100kHz~100MHz. In the motor drive system simulation platform, motor line current and ground current are calculated, and results shows great consistency with the measured values. This article introduces and suggests that the motor high frequency mode can be used in the common-mode and differential-mode conducted EMI analysis of motor drive systems.

Key words： Permanent magnet synchronous motor EMI modeling function fitting frequency domain analysis

收稿日期: 2013-07-29 出版日期: 2015-04-10

PACS:

TM15

基金资助:国家自然科学基金（51177183）和重庆市应用开发计划（cstc2013yykfA60001）资助项目

作者简介: 汪泉弟女,1954年生,教授,博士生导师,研究方向为电磁场与电磁兼容。张飞男,1988年生,硕士研究生,研究方向为汽车电气系统电磁兼容。

引用本文:

汪泉弟,张飞,彭河蒙,刘青松,李旭. 基于向量拟合法的永磁同步电机EMI高频模型[J]. 电工技术学报, 2015, 30(6): 77-84. Wang Quandi,Zhang Fei,Peng Hemeng,Liu Qinsong,Li Xu. Permanent Magnet Synchronous AC Motor EMI Model Based on Vector-Fitting. Transactions of China Electrotechnical Society, 2015, 30(6): 77-84.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2015/V30/I6/77

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